Buff

Most often, a buff refers to a temporary beneficial spell or effect placed on a player. Buffs can range in effect from simple personal shields to buffs which augment almost every category of stats a given player may have for their race or class.

Buffs can be of two types: those that expire over time (simple buff like Arcane Intellect) and those that are dependent of the environment around you (like the AoE effect given by totems).

You can dismiss an active buff that expires over time by right-clicking on its icon.

Most buffs do not stack with other similar buffs. One prominent exception is heal over time spells, heal over time spells from multiple characters and different heal over time spells from the same character (such as a druid's Regrowth and Rejuvenation) will stack with eachother.

Buff can also be used as a verb, i.e. "to buff" means to apply buffs.

Buff is also used to represent a change to a class or ability that makes it more effective or useful. It is the opposite of a nerf.

Focus Magic - Increases the target's chance to critically hit with spells by 3%. When the target critically hits your chance to critically hit with spells is increased by 3% for 10 sec. Cannot be cast on self.

Crusader Aura - Increases Mounted speed by 20%. Does not stack with other speed increasing effects.

Blessings - Blessings affect everyone in a paladin's party/raid. Only one blessing can be active on a party/raid per paladin at a time. Blessings can also be put on single targets only if the target is not in your party. All Blessings last 1 hour.

Seal of Insight - Gives each single-target melee attack a chance to heal the Paladin and restore 4% of the paladin's base mana.

Seal of Truth - Causes single-target attacks to Censure the target, which deals (additional Holy damage over 15 sec. Censure can stack up to 5 times. Once stacked to 5 times, each of the Paladin's attacks also deals 15% weapon damage as additional Holy damage.

How to get: When the head of Rend Blackhand is returned after a player completes "For the Horde!", the end of the first part of the Onyxia prequest chain, all players located in Orgrimmar are buffed with this buff.

With the release of patch 3.0.2 players will see a change in the way we allow buffs and debuffs to stack exclusively in a raid. For the most part, what this change means is that many buffs and debuffs that were previously allowed to stack together no longer can, and that many buffs and debuffs that only a single talent specialization could bring can now be brought by multiple different specializations. The philosophy behind this change shows up in many of the changes we have made in Wrath of The Lich King, such as when we made almost all buffs raid-wide. We want players to be able to form raids and parties based on who they want to play with, rather than who has the correct talents and abilities to min-max their raid performance.

Raid composition will still matter to some extent, but without this change, it would have overwhelmed every other aspect of raid planning (as we added new capabilities to each of 30 different talent trees). You no longer need to rigidly control the melee/spellcaster balance of your raid, or make sure every group has all the critical buffing classes, etc. This change has many class balance implications.

IMPORTANT! Before we are done, we will thoroughly test the performance of every class. It should not be assumed that one class' current performance relative to others in beta is final. Some classes (and specializations) will need to be reduced in power and some increased. Many may feel the change has more impact on class X than class Y. We will address all of those concerns via our internal testing and community feedback.

There are thirty or so different categories into which buffs and debuffs fit. Here you will find a comprehensive list of the changes made broken down by category and which spells/talents are in that category.

In each category, you can only benefit from the most powerful spell granting that effect. For example, Fel Intelligence grants spirit and intellect, both weaker than Arcane Intellect and Divine Spirit. If a player has Fel Intelligence and receives a stronger Arcane Intellect buff, he will gain the intellect value from Arcane Intellect and the spirit value from Fel Intelligence.

In most cases, fully-talented players will have exactly equal power on the strength of these buffs and debuffs. Fel Intelligence is an example of where one ability is weaker than others. The buffs in the "Increased Spell Power Buff" category are also not all the same potency, as they scale and grow in radically different ways. In virtually every other case, however, the buffs are equal. This means, for example, that fully-talented Battle Shout and Blessing of Might now grant the exact same amount of attack power.

In addition to this change, we also needed to address the "mana battery" roles in a raid. The mana regeneration effect they grant is no longer limited to their own party, and it no longer depends on the amount of damage they deal. Each time they trigger the mana regeneration effect, 10 people in their raid group will receive a buff which causes them to regenerate 0.5% of their maximum mana each second. This buff, Replenishment, will be given preferentially to raid members with the lowest mana, but will re-evaluate which raid members receive it each time it is fired. Replenishment is provided by Shadow Priests, Survival Hunters, and Retribution Paladins.

Finally, we have modified Heroism and Bloodlust to affect the entire raid. However, all affected raid members will be unable to cast or benefit from Bloodlust/Heroism for 5 minutes.

Below you will find a list of the changes to abilities which exhibit new behavior regardless of the exclusive categories. The changes usually mean the old behavior was removed and replaced by the new behavior. Numbers listed are for maximally-talented versions. Here is that list of changes: